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https://issues.apache.org/jira/browse/MESOS-4566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Park updated MESOS-4566:
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Description: A few of the critical code paths in {{jsonify}} involve
unnecessary temporary string construction and copies (inherited from the
{{JSON::*}}). For example, {{strings::trim}} is used to remove trailing 0s from
printing {{double}}. We print {{double}} a lot, and therefore constructing a
temporary {{std::string}} on printing of every double is extremely costly. This
ticket captures the work involved in avoiding them. (was: A few of the
critical code paths in {{jsonify}} involve unnecessary temporary string
construction and copies (inherited from the {{JSON::*}}). For example,
{{strings::trim}} is used to remove trailing 0s from printing {{double}}s. We
print {{double}}s a lot, and therefore constructing a temporary {{std::string}}
on printing of every double is extremely costly. This ticket captures the work
involved in avoiding them.)
> Avoid unnecessary temporary `std::string` constructions and copies in
> `jsonify`.
> --------------------------------------------------------------------------------
>
> Key: MESOS-4566
> URL: https://issues.apache.org/jira/browse/MESOS-4566
> Project: Mesos
> Issue Type: Improvement
> Components: stout
> Reporter: Michael Park
> Assignee: Michael Park
> Labels: mesosphere
> Fix For: 0.24.2, 0.25.1, 0.26.1, 0.27.1, 0.28.0
>
>
> A few of the critical code paths in {{jsonify}} involve unnecessary temporary
> string construction and copies (inherited from the {{JSON::*}}). For example,
> {{strings::trim}} is used to remove trailing 0s from printing {{double}}. We
> print {{double}} a lot, and therefore constructing a temporary
> {{std::string}} on printing of every double is extremely costly. This ticket
> captures the work involved in avoiding them.
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